OBJECTIVE Hypertrophic osteoarthropathy (HOA) is characterized by the coexistence of digital clubbing and periosteal proliferation of the tubular bones. Localized vascular proliferation associated with platelet/endothelial cell activation are recognized features of this syndrome. Current knowledge suggests that HOA develops from the presence in the systemic circulation of one or more growth fac...

The image formed by the eye's optics is inherently blurred by aberrations specific to the individual's eyes. We examined to what extent judgments of perceived focus depend on the total magnitude as opposed to the specific pattern of blur introduced by the eye's high order aberrations (HOA). An Adaptive Optics system was used to simultaneously correct each subject's wave aberrations and display...

OBJECTIVES To investigate systemic inflammation and autoimmune response to citrullinated peptides in patients with erosive and non erosive 'lone' hand osteoarthritis (HOA) with no hip/knee involvement and their relationship with radiographic structural damage. METHODS Sera were obtained from a total of 99 patients with HOA (52 patients with erosive HOA and 47 patients with non-erosive HOA) an...

Numerous causes of hypertrophic osteoarthropathy (HOA) have been reported. Commonly, secondary osteoarthropathy accompanies pulmonary diseases such as carcinoma of the lung, pleural tumors, lung abscesses, and bronchiectasis. However, HOA in inflammatory bowel disease is a rare complication. There are only a few reports of secondary HOA with Crohn's disease. Our purpose was to report another ca...

OBJECTIVES Several studies have revealed increased bone mineral density (BMD) in patients with knee or hip osteoarthritis, but few studies have addressed this issue in hand osteoarthritis (HOA). The aims of this study were to compare BMD levels and frequency of osteoporosis between female patients with HOA, rheumatoid arthritis (RA) and controls aged 50-70 years, and to explore possible relatio...

PURPOSE To evaluate the correlation between refractive, corneal, and residual astigmatism and higher order aberrations (HOA) in refractive surgery candidates. METHODS Three hundred and seventy-five eyes of 188 patients aged 28.2 ± 6.24 years with a predominance of females (62.7%) were enrolled in this study. Refraction, topography (Orbscan IIz, Bausch & Lomb, Rochester, NY, USA), and aberrome...

Hypertrophic osteoarthropathy (HOA) is a rare syndrome characterized by the abnormal proliferation of dermato-osseous tissue. We report a rare case of malignant mesothelioma-associated HOA who suffered from refractory painful osteoarthropathy. HOA can be associated with malignant mesothelioma and that may be resistant to any treatment.

Wave field synthesis (WFS) and higher-order Ambisonics (HOA) are two sound reproduction techniques that facilitate a high number of reproduction channels to overcome the sweet-spot limitation known from conventional stereophonic reproduction techniques. HOA is based on a representation of the reproduced wave field in terms of spatial harmonics, WFS is based on the KirchhoffHelmholtz integral. I...

alpha-Hydroxy-9-cis-octadecenoic acid, a synthetic fatty acid that modifies the composition and structure of lipid membranes. 2-Hydroxyoleic acid (HOA) generated interest due to its potent, yet nontoxic, anticancer activity. It induces cell cycle arrest in human lung cancer (A549) cells and apoptosis in human leukemia (Jurkat) cells. These two pathways may explain how HOA induces regression of ...

This paper describes the channels known as hoa which are characteristic of atoll land rims and of some islands on ba i~ ie r eefs, where they often dissect previously more continuous reef-top sediment accumulations and conglomerate platforms. They are especially common in the central Pacific, and are particularly well developed in some atolls of the Tuamotu Archipelago and on some of the Societ...